Subject: 3.5m Night Log 20150308
From: dembicky@apo.nmsu.edu
Date: Mon,  9 Mar 2015 12:49:33 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, March 08, 2015
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
J.Borish          J.Borish              TSPEC          19:14   21:49
M.Hammergren      K.Nault, M.Brucker    SPICam         00:10   01:50
A.Ritchey     A.Ritchey, G. Wallerstien ECHELLE        04:10   06:45
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UV06/R     19:14   00:10    0   2.3   0    0   2.6   0    0    0
AD02/R     00:10   02:10    0   0.3   0    0   0.0  1.7   0    0
UW09/R     02:10   07:13    0   2.0   0    0   0.0  3.1   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
I decided to close at 21:49 due to clouds, and rapidly rising humidity (as well as precip around us).  Humidity spiked shortly after and stayed just below the 3.5m closure limit, but I remained closed.
We re-opened at 01:10 after the humidity dropped below closure (and seemed relatively slow changing) and it was clear.  We closed at 01:50 at thick clouds appeared in the N and moved overhead.  at 02:15 the rain sensor went off (snow flurries) accumulating on the ground 10 mins later.
We re-opened around 04:00 after the clouds passed.  Just a dusting of snow on the ground.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 18:32 tcamera    499(  699)  91  65   3.8  6.7  6.6  6.6  4.1   Ks  1.10
 23:26 SPIcam     427(  338) 168  80   1.4  2.2  3.3  2.1  1.5 sdss r  0.90
 03:19 ecamera    423( -913) 148  51  -0.2  1.0  2.1  1.1  0.1  clear  1.60
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp C Dewp C  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00     9    -5     15   273    (W)    876  ptly cldy   none
     17:00     8    -8     11   275    (W)    825  ptly cldy   none
     18:00     8    -7      9   278    (W)    980  ptly cldy   none
     19:00     5    -8      9   265    (W)    952    clear     none
     20:00     3    -8      7   284  (WNW)    950    clear     none
     21:00     3    -8      4   344  (NNW)   1041  ptly cldy   none
     22:00     2    -2     17    71  (ENE)    873  ptly cldy  humid
     23:00     1    -1     14    72  (ENE)    963  ptly cldy  humid
     00:00     1    -2     10    83    (E)    917 mstly clr    none
     01:00     1    -2     13    77  (ENE)    903 mstly cldy   none
     02:00     2    -5      8    82    (E)   1013   cloudy     snow
     03:00     1    -4     12    81    (E)    895   cloudy     none
     04:00     0    -4     16    71  (ENE)    953 mstly clr    none
     05:00     0    -4      9    79    (E)    979    clear     none
     06:00     1    -4      8    41   (NE)    989    clear     none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.0.4
    Current TUI version: 2.3.2